Add d3-brush dependency

package.json

@@ -22,6 +22,7 @@
     "@types/rx": "^4.1.1",
     "d3": "^5.9.2",
     "d3-axis": "^1.0.12",
+    "d3-brush": "^1.0.6",
     "d3-drag": "^1.2.3",
     "d3-path": "^1.0.7",
     "d3-scale": "^3.0.0",